Here is a custom cardstock building I've been working on based on the Nabootique shop from the Mighty Boosh. It's 28mm scale. Now I just need a Naboo and Bollo miniatures to go with it!
Made my own textures in photoshop. Made with 1.5mm card. Based on a London style building. It's pretty solid and I cut the windows out and inset them.
The width is 4" and I plan to make a few more of the same and hope they fit to a modular grid system for my terrain.
I think I will use it in skirmish games like 7TV or even Necromunda.